AC/heater has no power

Reply

  #1  
Old 10-05-12, 06:06 PM
Member
Thread Starter
Join Date: Nov 2004
Location: san diego, ca
Posts: 79
Received 0 Votes on 0 Posts
AC/heater has no power

Hello,

I have central AC/heater unit. About a year ago, it stopped blowing hot and cold air but it would still blow air. I got someone from ASI took look at it. Aside from taking my money for simply coming out, he did something to the fuse (I thinh he flipped it) saying there's no point in giving it power if it's not working. I went back today and flipped the fuse and tried to turn the heater/AC on and it doesn't come on. Anyone know why that is? How can I get power back to the unit?
 
Sponsored Links
  #2  
Old 10-05-12, 07:28 PM
hvactechfw's Avatar
Member
Join Date: Jan 2011
Posts: 6,245
Received 0 Votes on 0 Posts
need to verify power into unit and out of transformer.
 
  #3  
Old 10-05-12, 09:25 PM
Member
Thread Starter
Join Date: Nov 2004
Location: san diego, ca
Posts: 79
Received 0 Votes on 0 Posts
how does flipping the fuse cut off power to the transformer?
 
  #4  
Old 10-05-12, 09:29 PM
hvactechfw's Avatar
Member
Join Date: Jan 2011
Posts: 6,245
Received 0 Votes on 0 Posts
how do you flip a fuse? Now that is a good question!
 
  #5  
Old 10-05-12, 10:20 PM
Member
Thread Starter
Join Date: Nov 2004
Location: san diego, ca
Posts: 79
Received 0 Votes on 0 Posts
there are 2 fuses on a fuse block. he took the block out, turned 180degrees and put it back. basically he disconnected the fuse block.
 
  #6  
Old 10-06-12, 05:38 AM
hvactechfw's Avatar
Member
Join Date: Jan 2011
Posts: 6,245
Received 0 Votes on 0 Posts
Ok, you are talking about a pull out disconnect. Now I understand. Have you verified that the breaker is on? Have you verfied the fuses are good ( in the disconnect)? Have you verified power into and out of the disconnect?
 
  #7  
Old 10-06-12, 02:07 PM
Member
Thread Starter
Join Date: Nov 2004
Location: san diego, ca
Posts: 79
Received 0 Votes on 0 Posts
if by breaker you mean circuit breaker, yes i checked that. how do i check for good fuses? how do i verify power to the disconnect?

again, i don't understand how these things go bad by flipping the fuses.
 
  #8  
Old 10-06-12, 03:21 PM
ray2047's Avatar
Group Moderator
Join Date: Mar 2006
Location: USA
Posts: 33,597
Received 13 Votes on 11 Posts
if by breaker you mean circuit breaker, yes i checked that.
How? Did you turn it all the way off then back on? Sometimes they don't look tripped but are. Did you use a multimeter or test light to test the voltage between the two breaker lugs and from each lug to neutral?

how do i check for good fuses
Pull the fuse and check for continuity with a multimeter.

i don't understand how these things go bad by flipping the fuses
They don't.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: